Figure 6
From: Femtosecond laser filament induced condensation and precipitation in a cloud chamber

Mixing of air (a) when the heating was on and (b) when the heating was switched off. Saturated vapor density ρs relative to ice (from −46 °C to 0 °C) is in green and that relative to water (from 0 °C to 23 °C) is in red.